@maurice I just discovered Zavala via your RSS feed. It is exactly the kind of outliner I want. No frills. When outlining pioneer David Dunham's life-changing but now ancient Opal 1.3 (2019) finally dies, I can replace it with Zavala.

Request: Opal has one non-frill feature: Formatting outline items with checkboxes, or (outline-style, nested) numbering. The former allows my outliner to act as a do-list/checklist; the latter allows me to count items easily (I have (1/2)

@shunting Zavala uses strike through to denote completed items. Just swipe right or use the context menu. Outline numbering is on my list of things to do. It really is the last major outliner feature that Zavala doesn’t currently have.